The stadium was created to host plays that today we would call Athletics Plays, and it is mandatory to distinguish it from the circus, where took place equestrian competitions.
Emperor Antoninus Pius, about 140 a.D. commanded to build this stadium in Pozzuoli in honor to his adoptive father, emperor Hadrian, died in 138 a.D.; he created also a celebration in order to remember him, which was called “Eusebeia” plays, that means “plays for divine reverence”.
Nowadays is possible to see the monumental arch where the complex began and, by crossing the Domitian way, continued up to 300 metres. Most part of the track and the bleachers collapsed; because of the bradyseismic phenomenon, over the centuries the soil of Pozzuoli lowered 12 metres. Tides had a decisive role weakening the structure of the platform, called starza, so when it lifted up again, most part of it crumbled. But the stadium continues to be a silent witness.